Large retailers like walmart have enormous channel control due to their size and power. which type of channel arrangement does this represent?

The type of channel that large retailers represent like Walmart who has enormous channel control due to their size and power is called administrative. Administrative channel is one of the three dependent channel arrangements usually associated in the supply chain and distribution system in general. This arrangement is mostly associated to large corporations or retailer which usually dominates the market and hence has great influence/power in the channel management